Construction Multi-Level Pattern Loop Pile Fiber 100% Antron Legacy Continuous Filament Nylon With Duratech Soil Resistance Treatment. Primary Backing 100% Synthetic Secondary Backing Power Lock® High Performance Backing. Secondary Backing Power Lock® RE w/ minimum 10% post-consumer recycled content based on total product weight Yarn Ply 2 Ply Tufted Yarn Weight 28 Ounces Per Sq. Yd. (949 g/m2) Finished Pile Thickness .152 Inch Approx. (3.86 mm) Stitches Per Inch 14 (3.86 Rows/cm) Machine Gauge 1/10" (3.94 Stitches/cm) Density 6,632 Pattern Repeat 7 1/2" Wide x 10" Long (19.05 cm x 25.40 cm) Width 12' (3.66m) ASTM E-648 Average Critical Radiant Flux: Greater than .45 - Class 1 CRI Indoor Air Quality Carpet Testing Program Passes - Certification No. 2878 NBS Smoke Chamber Test Specific Optical Density: Less than 450